Radiator wrench



Oct. 23, 1928. I 1,688,525

, J. R.'COWART RADIATOR wiwNcH Fil ed Aug. 1927 Inventor B Attornqy Patented Oct. 23, 1928.

UNETED STATES JOHN REMER COWART, OF SAVANNAH, GEORGIA.

RADIATOR WRENCH.

Application filed August 8, 19:27. Seria1 No. 211,499.

This invention relates to new and useful improvements in special tools, and aims to provide a tool that is hereinafter termed a wrench that is constructed for use in the as sembling or disassembling of hot water and steam radiators, the tool comprising means whereby the usual threaded nipples between the upper and lower ends of the radiator sections may be turned in reverse direction for separating or connecting the sections.

The invention further aims to provide means slid-ably adjustable upon the main element of the wrench for engagement within the outermost radiator section so that the wrench will be guided in a horizontal manthat the same will be engaged with the proper nipple.

In the drawing wherein like reference characters indicate corresponding parts throughout the several views:

Figure 1 is a side elevation of my improved wrench.

Figure 2 is an elevation at right angles to Figure 1, disclosing the wrench guide unit in longitudinal cross section, and

Figure 3 is a section taken substantially upon the line 33 of Figure 1 and looking in the direct-ion toward the right as indicated by the arrow in Figure 1.

Now having particular reference to the drawing, my novel wrench consists of a bar 5 of predetermined length and of circular shape in cross section, and of a diameter to permit the same to lie-engaged through the connecting nipples at the upper and lower ends of radiator sections of various sizes. One end of this bar 5 is of square formation in cross section as designated by the reference character 6 to be engaged by a suitable tool to facilitate the turning of the bar after the longitudinal extending plate 7 has been engaged with a particular nipple of the radiator.

The bar 5 is formed throughout its length and intermediate the ends 6 and 7 with circular notches 8 in spaced relation equivalent to the spaced relation of the connecting nipples of a steam or hot water radiator. Slidable upon the bar 5 is a circular collar 9, the opposite ends of which are of reduced diameters to provide rings 10-10 which are themselves of different diameters, for engagement within the two standard threaded sizes of radiator sections. Obviously the collar 9 serves as an abutment against the face of the outermost radiator section, which limits the inward movement of the collar rings 1010 and at the same time limits the inward move ment of the longitudinal plate 7 which engages the nipple of the section to be connected or disconnected. The collar 9 is formed centrally with a radial threaded opening 11 that terminates at its inner end within the bore of the collar and within which is arranged a threaded screw 12 having a turning wing 13 upon the outer end thereof. The inner end of this screw being of rounded formation for ei'i 'agement within any predetermined one of the rounded notches 8 of the tool bar 5.

The side edge of the plate 7 at the outer end of the bar 5 extends beyond the surface of said bar and in order that the collar 9 may be applied to or removed from the bar at said plate end there is formed at the inner surface of the collar opposed channels 1l1l, the

depth of which is such that said channels extend entirely through the smaller collar ring 10 and clearly indicated in Figure 3. Obviously the collar may be removed and arranged in reversed position upon the bar from that shown in the drawings, so that the larger ring 10 may be engaged within the larger one of a standard size section of a steam or water radiator.

In use, the collar 9 is secured upon the bar at a point from the longitudinal end 7 equivalent to the spaced relation to the nipple to be turned from the outermost radiator section. The longitudinal end 7 ofthe bar 5 is then engaged horizontally through the sections of the radiator to the limit of its movement, said movement being limited by the collar, after which the bar is turned in the desired direction .for applying a suitable tool to square end 6 of bar 5 for tightening or releasing the particular connecting nipple between the particular radiator section. By reason of the particular collar 9 the bar 5 will be prevented from engaging the threads of the outermost radiator section which would otherwise result in the mashing of the same.

Having thus described the invention, what I claim as new is 1. In a radiator wrench of the character described, a-relatively elongated bar adapted to be engaged through the uniting nipples between the upper and lower ends of the radiator sections, one end of said bar being constructed for engagement with a predetermined one of the nipples, means upon the opposite ends of the bar whereby the same may be turned and means for engagement Within the outermost section for limiting the inward engagement of the bar through said radiator sections, said means being longitudinally slidably adjustable upon the bar, and said bar being constructed with spacing markings whereby the means may be disposed at a predetermined point thereon so that the inner end of the bar will engage the proper nipple within the radiator when said means is arranged Within the outermost radiator section.

2. In a radiator wrench of the character described, a relatively elongated bar adapted to be engaged through the uniting nipples between the upper and lower ends of the radiator sections, one end of said bar being constructed for engagement with a predetermined one of the nipples, means upon the opposite ends of the bar whereby the same may be turned and means for engagement within the outermost section for limiting the inward engagement of the bar through said radiator sections, said means being longitudinally slidably adjustable upon the bar, said bar being constructed with spacing markings whereby the means may be disposed at a predetermined point thereon so that the inner end of the bar will engage the proper nipple within the radiator When said means is arranged within the outermost radiator section, said adjustable means being constructed at opposite sides for engagement within either of the two standard-sizes of a radiator section.

In testimony whereof I affix my signature.

JOHN REMER COWART. 

